Atomic-beam alignment of inorganic materials for liquid-crystal displays

Nature
P ChaudhariY Shiota

Abstract

The technique used to align liquid crystals-rubbing the surface of a substrate on which a liquid crystal is subsequently deposited-has been perfected by the multibillion-dollar liquid-crystal display industry. However, it is widely recognized that a non-contact alignment technique would be highly desirable for future generations of large, high-resolution liquid-crystal displays. A number of alternative alignment techniques have been reported, but none of these have so far been implemented in large-scale manufacturing. Here, we report a non-contact alignment process, which uses low-energy ion beams impinging at a glancing angle on amorphous inorganic films, such as diamond-like carbon. Using this approach, we have produced both laptop and desktop displays in pilot-line manufacturing, and found that displays of higher quality and reliability could be made at a lower cost than the rubbing technique. The mechanism of alignment is explained by adopting a random network model of atomic arrangement in the inorganic films. Order is induced by exposure to an ion beam because unfavourably oriented rings of atoms are selectively destroyed. The planes of the remaining rings are predominantly parallel to the direction of the ion beam.

Citations

Jan 10, 2012·Nanoscale Research Letters·Yoonseuk ChoiJin Seog Gwag
Jul 23, 2004·The Journal of Chemical Physics·Xin ZhouMitsumasa Iwamoto
Jan 28, 2006·The Journal of Chemical Physics·Kenji KiyoharaYo Shimizu
Jul 20, 2006·The Journal of Chemical Physics·Lay Min LeeKenneth S Schweizer
Jul 22, 2017·Advanced Materials·Gyu Jin ChoiSoo Young Kim
May 3, 2001·Nature·J van Haaren
Sep 6, 2006·Angewandte Chemie·Suk-Won ChoiHideo Takezoe
Mar 11, 2010·Advanced Materials·Soon Moon JeongHideo Takezoe
Jan 26, 2010·Nanotechnology·Sven MackoThomas Michely
Dec 18, 2010·Optics Express·Jung Hwa HerSeung Hee Lee
Jun 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Oleg V YaroshchukRuslan M Kravchuk
Apr 8, 2011·Physical Review Letters·Satoshi AyaHideo Takezoe
Oct 25, 2012·Nanotechnology·Yan Jun LiuJing Hua Teng
Aug 13, 2008·Nanotechnology·Valentin BarnaCharles Rosenblatt
Mar 20, 2002·Applied Optics·Cindy K Harnett, Harold G Craighead
Jun 6, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·L T ThieghiD T Balogh
Oct 4, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Mojca Vilfan, Martin Copic
Jan 7, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M MukherjeeU Pietsch
May 15, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Mojca VilfanMartin Copic
Apr 2, 2010·ACS Applied Materials & Interfaces·Hao Qi, Torsten Hegmann
Dec 14, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaoqin ZhouMinghua Liu
Jan 10, 2013·The Journal of Physical Chemistry. B·Luciano De SioRoberto Bartolino
Nov 16, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Kyung Chan KimHong Koo Baik
Dec 12, 2002·Journal of the American Chemical Society·Alison R NobleRalph G Nuzzo
Oct 18, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Da-Ren ChiouChein-Dhau Lee
Aug 11, 2006·The Journal of Physical Chemistry. B·Lay Min LeeKen S Schweizer
Jul 15, 2006·The Journal of Physical Chemistry. a·J BenediktM C M van de Sanden

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